Rubber brush



A. HEMPEL l RUBBER BRUSH Dec. 29, 1936.

Filed July l0, 1956 Fig? /m/enon' ANNA HEMPEL er ab! @j ATroRNErs Patented Dec. 29, 1936 UNITED STATES PATENT OFFICE Application July 10, 1936, Serial No. 89,918 In Germany October 31, 1934 1 Claim.

The invention relates to a rubber brush used for cleaning garments, cloths, carpets, curtains, upholstered furniture, etc. The brush is not only suitable for the simple cleaning from dust and other inherent impurities but specially for the removing of the objectionable ironing lustre from woolens and the shine or polish caused by long Wear of garments.

Brushes are known, the rubber bristles of which are either tapered throughout or mainly cylindrical and only provided with a tapered outer end. This pin shape `When of rugged design causes an intense rubbing effect but leaves streaks with delicate cloths, and scratches the fabric. If these pins are thin, they are very ilexible but act like a pencil.

A rubber brush that is also to be used forV cleaning flne delicate cloths, must show the advantages of a horse-hair brush. In addition to an intense rubbing effect, it must possess great flexibility. The rubber brush means a big advance over horse-hair brushes in an hygienic respect for due to the electrifying effect of the rubber no dust will be raised in use.

According to the invention, the rubber studs of the brush have a bottom part tapering from the back of the brush towards the outside and a cylindrical top forming the continuation of the bottom part. The latter possesses a broad inner end which is attached to the body of the brush, and causes a certain stiffness of the stud which gradually terminates in the cylindrical top. This design of the studs produces greatest elasticity and flexibility and causes the rubber bristles to, penetrate into each folding and rounding of the cloth to be cleaned and adapts itself to every corner and recess.

The drawing shows the invention by way of example, i. e.

Fig. 1 the lateral view of a brush designed according to the invention;

Fig. 2 an elevation of the same brush;

Figs. 3 and 4 two slightly modified shapes of the rubber studs.

A pad a consisting of elastic rubber is provided with studs b, c of the same material. The bottom part b of the studs is of corneal shape, the broad basis of part b being fixed to the base a, by interposing a broader thickening d between the bases of the studs b and the rubber pad a. 5 The top part c being a continuation of part b is of cylindrical shape.

The pad a may itself form the hand piece or may be covered with wood or other material e, as shown in Figs. 1 and 2. The pad may also i0 be provided With an insertion of steel or any other strong material. Finally it is also conceivable tc fasten rubber studs of the aforementioned design to or into a base consisting of other material. 15

Figs. 1 and 2 of the drawing show an actually made clothes brush in full size. In accordance with the specific rekuirements, application and size of the brush, the measures of the component parts may be altered accordingly. 20

Instead of making the bottom part, as shown in Fig. 1, exactly conical, the tapering of the bottom part may be effected in a somewhat different way, for instance, in a manner shown in Figs. 3 and 4 on each enlarged scale for an in- 25 dividual rubber stud.

The brush may be made as a hand brush or handle brush or it may be designed so as to attach a handle and to be used as carpet brush or scrubbing brush. 30

In order to increase the erasing effect of the rubber when removing the lustre, sea sand, metal dust, or the like may be added to the rubber material.

It is to be understood that the Word rubber 35 is used in the sense of any material having the ilexibility of common vulcanized rubber.

I claim:

A brush of the character described, comprising a suitable backing, and bristles of flexible mate- 40 rial throughout, having base portions of conical form connected With said backing and free ends of elongated cylindrical form.

ANNA HEMPEL. 45 

